Ok my iMac decided to turn itself off I was ripping a DVD downloading with transmission and was typing on ms word 08 all of a sudden my imac turned off! I'm guessing it's because of heat. Now it won't turn on I've unplugged the power cordvand have held down the power button.
Follow these steps if, when you turn your computer on, it promptly powers back off. This is a particularly annoying way in which your computer won't turn on because you're trying to use If your computer turns on but then stops or freezes at any point, showing an error message of any kind, then...
Mar 10, 2017 · How does it shut off? I had a desktop that would all of a sudden just shut down like you clicked ‘shut down’ and nothing you could do but power back up. Turns out it was simply a bad power switch.
I tried to turn the system back on, nothing, just the same flashing amber light. I got the light to turn off by holding the power button down until it was off. I did a search on this forum that said it might be the power supply, so I swapped the power supply with another Dell computer and it did nothing.